What you must realize, my Autobot brothers, is we were never going to win the war. For the sake of our planet, a deal had to be made..... with Megatron!!
~ Sentinel Prime before killing Ironhide.
Villains who lend their services to rivals/rival companies with the intent of sabotage. Sabotage can be subtle or blatant, depending on the villain, but is almost always designed to ruin a rival's chance of succeeding or even destroying their business/goals completely.